stahlin



(NoModeL) 0. A. STAHLIN.

BOTTLE STOPPER.

No. 279,455. Patented June 12,1883.

hm Wanhmglon. D C

UNITED STATES PATENT OFFICE.

CARL A. SIAHLIN, OF STOGKHOLM, SWEDEN.

BOTTLE-STOPPER.

SPECIFICATION forming part of Letters Patent No. 279,455, dated June 12,1883.

Application filed November 25, 1882. (No model.)

To all whom it may concern:

Be it known that I, CARL ANTON STAI-ILIN, a subject of the King ofSweden, residing at Stockholm, in the Kingdom of 'Sweden, have inventedcertain new and useful Improvements in Bottle-Stoppers; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the letters or figures of reference markedthereon, which form a part of this specification, and in which Figure lis a side view of my improved bottle-stopper. Fig. 2 is a top view. Fig.3 is a vertical section. Fig. 4 is a cross-section. Fig. 5 is a detailview, and Fig. 6 is a vertical section of a modification of the same.

Similar letters of reference indicate corre sponding parts in all thefigures.

My invention has relation to that class of bottle-stoppers in which arubber tube inserted into the mouth of the bottle is compressed by meansof a screw having a plate at its lower end and a nut at its upper endbearing against a plate upon the upper end of the rubber tube, and beingkept from turning by having a flat side bearing against a flat side inthe ring;-and it consists in the improved construction and combinationof parts of the same, as hereinafter more fully described and claimed.

In the accompanying drawings, the letter a indicates arubber tube,having a swell, a, at its upper part and an annular projection, 72,around its lower end.

c is a central longitudinal recess, which has at its lower end a widenedrecess, is, corresponding to the projection 12, and which opens at theend of the tube through an aperture, 0.

'Upon the upper end of the tube a is an annular disk, 6, having adownward-projecting sleeve, (2, having an outward-turned flange, 6 whichserves to hold the sleeve and disk in position upon the tube. The oneside, z, of the sleeve 6 is bulged inward, bearing against the flatside, Z, of the stem (2. This stem passes through the tube from top tobottom, and is provided with buttons f and j at top and bottom. Thelower part of stem (2 is smooth,

while its upper part is screw-threaded, excepting upon the one side, Z,which bears against the bulged side of the sleeve 6, thereby beingprevented from turning. A screw-threaded nut, h, turns upon the upperscrew-threaded part of stem d, and has a scalloped or milled flange, g,forming means for clasping it when it is to be turned. A spiral spring,t, is placed around the lower smooth part of stem d, bearing with itslower end against the bottom of recess 7 and with its upper end againstflange e of the sleeve. When the nut h is screwed down upon the stem (2,the lower button will draw the lower end of tube an upward, compressingit longitudinally and causing it to swell out toward the sides, therecess is and projection b causing it to swell more in the lower portionthan in the upper, thus holding the stopper firmly in the neck of thebottle. When the nut is unscrewed the spring t will serve to bring thetube back again into its normal state, allowing it to be withdrawn, the

spring retaining its elasticity even if the rubher in the tube has byuse grown less elastic.

I do not claim a bottle-stopper having a rubber tube compressed by meansof a screw and thumbnut; but

What I do claim, and desire to secure by Letters Patent'of the UnitedStates, is

A bottle-stopper of the described class, con sisting of a rubber tube,a, swelled at a, having annular proj ectionb around its lower end, andcentral recess, 0 k 0, plate 6, having sleeve 6, bulged inward at t andprovided with outward-bent flange e stem (1, having another lower part,screw-threaded upper part, flat on one side, Z, and having spiral spring25, and buttons f and j at top and bottom, and screwthreaded nut h,having milled or scalloped flange g, and adapted to turn upon andoperate stem d, the whole constructed and combined to operatesubstantially as and for the purpose shown and set forth.

In testimony whereof I have hereto affixed my signature in presence oftwo witnesses.

CARL ANTON STAHLIN.

